Here's what it looked like in October when I was filling the barn:
|Deep litter barn for pigs, Oct|
|Deep litter for pigs, Nov|
|Deep litter for pigs, Jan|
|Deep litter for pigs, March - 150 days in.|
|Deep litter for pigs, Dunging area|
|Deep litter for pigs, sleeping area|
I'm about a month away from putting the pigs back out on pasture, and so far so good. I haven't had to change the bedding in 6 months, and the bedding is breaking down via composting over the winter. I've turned the bedding about once a month to keep it in good condition, and there is no noticeable smell (other than the exposed manure at the dunging area), which I would have expected from 5 months of manure -- the wood chips seem to be absorbing the manure, and the composting action is actually making it more comfortable for the pigs.
I'm going to guess that the chips are about 40% composted at this point. If I wanted to empty this barn and use the resulting soil for planting I'd say it'll be ready in mid April to early May. When I get done with this I'm going to test the soil and see what it's like. I suspect it'll be pretty good planting soil.